Motorcycle Safety & Driveability: three wheeled, lehman trikes, victory motorcycles

Question
Is there a motorbike made in the US that has three wheels?  I don't want an actual motorcycle, but I want something similar to a motorbike that has three wheels.  I don't need to go real fast, (although it needs to be allowed on the main roads...).

Answer
Lehman Trikes (lehmantrikes.com) offers a  line of three wheel motorcycle conversions. Products include conversions of Honda, Suzuki, Harley-Davidson and Victory motorcycles. The Lehman conversions offer a traditional two rear wheel configuration. New offerings in the three-wheeled arena include products with a single rear wheel and dual front wheels. Bombardier Recreational Products and Piaggio have emerged as leaders in this new technology.
The Can-Am Spyder Roadster (spyder.brp.com) and Piaggio MP3 (piaggiousa.com),although not made in the U.S.A., are available through U.S. distributors. The product lines offered by these sources provide different options for the three wheel experience and I hope that you can find what you are looking for.